MDT
[Technical Design Report]
[MDT Cabling]
Mini-Drift Tubes (MDT)
Detectors
- 10 decks / octant
- 4 A-layer decks / octant
- 3 B-layer decks / octant
- 3 C-layer decks / octant
- preliminary channel count (within 2%):
- A-layer
- 960 cells / octant / side
- B-layer
- octants 0,1,2,3,4,7
- 1056 cells / octant / side
- octants 5,6
- 768 cells / octant / side
- C-layer
- octants 0,1,2,3,4,7
- 1320 cells / octant / side
- octants 5,6
- 768 cells / octant / side
Mini-Drift
Digitizing Cards (MDC's) (front end cards)
- 192 channels / MDC capacity
- 134 MDC's / side * 2 sides = 268 MDC's
- A-layer
- 5 MDC's / octant / side
- B-layer
- octants 0,1,2,3,4,7
- 6 MDC's / octant / side
- octants 5,6
- 4 MDC's / octant / side
- C-layer
- octants 0,1,2,3,4,7
- 7 MDC's / octant / side
- octants 5,6
- 4 MDC's / octant / side
- outputs:
- 2 cables / MDC to MCEN
(96 bits / cable)
- location:
- MDC crates (trusses)
Mini-Drift
Readout Controller (MDRC) cards
- 1 Digital Signal Processor (DSP) / MDRC
- 1 readout controller / MDRC
- inputs:
- 3 coax cables / MDRC from MRC
for timing signals
- 1 twisted & flat cable for control signals to and from MRC
- outputs:
- 1 coax cable / MDRC for serial link to L2 (L2 data from DSP via HOTLink)
- 1 coax cable / MDRC for serial link to MRC
(L3 data from DSP via HOTLink)
- location:
- MDC crates (trusses)
MDC Crates
- 24 crates
- 8-14 MDC's / crate
- 2 octants / layer / crate
- (grouped by octants 7&0, 1&2, 3&4, 5&6)
- 1 Mini-Drift Readout Controller (MDRC) / crate
- 1 680xx processor card / crate
- location:
- crates for octants 7&0, 3&4: vertical trusses
- crates for octants 1&2: top trusses
- crates for octants 5&6: bottom forward regions; between MDT planes?
Last modified: sep 21, 2004
akk@fnal.gov
